PROCESS FOR PRODUCING POLYMER COMPOSITION

摘要

PURPOSE: A manufacturing method of a polymer composition is provided to efficiently manufacture a polymer composition of high quality. CONSTITUTION: A manufacturing method of a polymer composition comprises a first polymerization step of supplying a raw material monomer and a polymerization initiator to a first reactor(10) through a supply port(11a) thereof under an adiabatic condition, and discharging a produced intermediate composition through an outflow port(11b); a second polymerization step of supplying the intermediate composition to a second reactor(20) through a supply port thereof(21a) under an adiabatic condition, and discharging a produced polymer composition from an outflow port(21b). The first polymerization step is conducted at 125-170 °C and the second polymerization step is conducted at 130-180 °C.